45113313421 has 6 divisors (see below), whose sum is σ = 49587361166. Its totient is φ = 41012103000.

The previous prime is 45113313419. The next prime is 45113313439. The reversal of 45113313421 is 12431331154.

It can be written as a sum of positive squares in only one way, i.e., 34252755625 + 10860557796 = 185075^2 + 104214^2 .

It is not a de Polignac number, because 45113313421 - 2¹ = 45113313419 is a prime.

It is a super-2 number, since 2×45113313421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45113313421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45113313481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186418530 + ... + 186418771.

Almost surely, 2^45113313421 is an apocalyptic number.

It is an amenable number.

45113313421 is a deficient number, since it is larger than the sum of its proper divisors (4474047745).

45113313421 is a wasteful number, since it uses less digits than its factorization.

45113313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372837323 (or 372837312 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

Adding to 45113313421 its reverse (12431331154), we get a palindrome (57544644575).

The spelling of 45113313421 in words is "forty-five billion, one hundred thirteen million, three hundred thirteen thousand, four hundred twenty-one".